NURSING EXAM QUESTIONS
FUNDAMENTALS OF NURSING
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Temporary reduction of blood to the brain
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Temporary reduction of food, causing disorientation
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Patient has gotten too cold and tired
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Patient has gotten too hot and nauseated
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Detailed explanation-1: -Syncope, the medical term for fainting/blacking out, is traditionally characterized by a sudden and temporary loss of consciousness (with spontaneous recovery) caused by insufficient oxygen delivery to the brain (via hypotension or other mechanisms).
Detailed explanation-2: -Fainting is the sudden and temporary loss of consciousness, and consciousness arises from neural activity in the cerebral cortex. Anything that disrupts neural activity in the cerebral cortex can cause loss of consciousness. The most common cause of fainting is insufficient blood flow to the brain.
Detailed explanation-3: -Syncope occurs when a normal reflex is overstimulated, associated with marked stimulation of the vagus nerve, which slows the heart rate and, along with dilation of blood vessels, lowers blood pressure and decreases blood flow to the brain.